Finding the Fourth Proportional to 22,660.37, 31,273.42 and 13,710.07

Step by Step Solution

1. Step 1: Write the proportion equation
   22,660.37 : 31,273.42 = 13,710.07 : x
2. Step 2: Convert to fraction form
   22,660.37/31,273.42 = 13,710.07/x
3. Step 3: Cross multiply
   22,660.37x = 31,273.42 × 13,710.07
4. Step 4: Simplify right side
   22,660.37x = 428,760,777.34
5. Step 5: Solve for x
   x = 428,760,777.34/22,660.37
6. Step 6: Final answer
   x = 18,921.17